Extra lightweight conversion kit combines safety glasses and goggles in one modern, wrap-around frame. A detachable elastic band and temple arms allow for a quick switch from one to the other. Includes a removable EVA gasket to create a seal, keeping foreign particles away from the eyes. Features Vapor Shield military grade anti-fog technology to keep lenses completely to fog, even in extreme environments. WARNING: This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. - Bisphenol A (BPA)